Comparison

ShellsBook vs Shellr AI

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

ShellsBook

Features
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ShellsBook is a field guide for beachcombers and shell collectors who want to identify seashells from visible traits instead of guessing from a single photo. Inside the app: - 18 researched seashell entries with common name, scientific name, family, habitat, ocean range, field marks, size, shape, color pattern, and rarity. - Look-alike comparisons for cowries, conchs, scallops, olives, moon shells, and more. - Conservation and handling notes that remind users to leave live or protected shells in place and follow local rules. - A local notebook for finds, beach notes, and locations typed by the user. - An AI conchology coach for morphology, habitat, and responsible collection questions. The full guide and notebook work without an account. Free users get three coach asks per day. ShellsBook Pro unlocks unlimited coach questions through Apple StoreKit. Privacy: notes stay on device. Coach asks send only the selected shell details and the user's question to our Cloudflare Worker so it can return an answer. No ads, no analytics SDK, no camera upload, no precise location permission, and no login. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Shellr AI

Features
Read full description

Identify seashells from photos. Shellr AI helps you review shape, aperture, ribs, pattern, likely group, beach context, and similar shells. SEASHELL PHOTO ID Take or import full shell, opening, side, and pattern photos. Shellr AI returns likely matches, confidence, visible evidence, and comparison notes. COLLECTOR CONTEXT Learn common groups, shell shapes, habitat context, and lookalikes. Shellr does not certify rarity, origin, legality, or sale value. COLLECTION RECORDS Save photos, notes, location context, confidence, and comparisons in your personal collection. AI CHAT Ask follow-up questions grounded in your exact seashell record. Responses are AI-generated and educational. SUBSCRIPTION INFORMATION This app requires a paid subscription for access to all features. Weekly and yearly plans are available; yearly may include a 3-day free trial. Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Apple ID account settings. Privacy Policy: https://www.dovedstudio.com/apps/privacy Terms of Use: https://www.dovedstudio.com/apps/terms Support: https://www.dovedstudio.com/apps/support

Screenshots

ShellsBook4 screens
Shellr AI4 screens

Verdict

The call

ShellsBook and Shellr AI are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. ShellsBook sells 2 in-app purchases, starting at $4.99 per month and Shellr AI sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
ShellsBook versus Shellr AI: the parameters behind the verdict, then further details
ParameterShellsBookShellr AI
PriceFreeFree
Update frequencyโ€”Every 6 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.018.0
Further details โ€” not scored
Size1 MB22 MB
Age rating4+4+
DeveloperMitaanshu AgarwalDavid Pavlovschii

In-app purchases

2 purchases

ShellsBook

Subscriptions2
  • ShellsBook Pro Monthly$4.991 Month
  • ShellsBook Pro Yearly$24.901 Year
2 purchases

Shellr AI

Subscriptions2
  • Weekly Subscription$2.997 Days
  • Yearly Subscription3 Days trial$29.991 Year

Questions

Is ShellsBook free?
ShellsBook is free to download, with in-app purchases available.
Is Shellr AI free?
Shellr AI is free to download, with in-app purchases available.
Do ShellsBook or Shellr AI have ads?
Neither ShellsBook nor Shellr AI shows ads.

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